Aeroplane



March 22, 1938., A, LUTSCHG I y 2,12,07

AEROPLANE Filed Aug. 20, v1 936 www pmi @ISM/ 7 www Patented Mar. 22,1938 UNITED STATES PATENT OFFICE AEROPLANE Arnold Lutschg, Great Bend,Kans.

Application August 20, 1936, Serial No. 97,065

1 Claim. (Cl. 244-22) The invention relates to aircraft, and has for 8carried by the under sides of the rockable its object to provide adevice of this character wings 9, which are adapted to be rocked in aver- Wherein wings are rockably mounted and are tical plane forsimulating the Wing movement of rocked by rotatable members having camslots a bird in flight. Wings 9 may be provided with therein cooperatingwith the inner ends of the conventional forms of ailerons I0, operablein the 5 hinged wings whereby when the cam members usual manner. It isto be understood that the are rotated the wings will be rocked forsimufuselage may be provided with the usual convenlating the flyingaction of a bird while in flight. tional structure of searchlight andstabilizer, and

A further object is to provide the inner ends applicant does not limithimself in this partic- 10 of the hinged wings with a headed memberdisular. 10

posed within the cam slots and movable there- The inner ends of therockable wings 9 are through but held against outward movement andprovided with shafts Il, which are slidably a telescopic connectionbetween the headed memmounted in the sleeves I2, which extend throughbers and the inner ends of the wings. the vertical bearing raceways I3in the sides of A further objectk is to provide the connections thefuselage and terminate in balls ill disposed 15 between the cam slotwheels and the inner ends within the cam slots I5 of the cam slot wheelsof the wings with bearing rollers movable over 4. The balls I4 are heldin position by remov- Vertical bearing surfaces in the sides of thefuseable retaining members It, which allow the balls lage, therebypreventing side twisting on the to move through the cam slots I5 duringthe hinged mounting of the wings and positive verrotation of the camWheel 4 and the sleeve I2 20 tical guiding of the inner ends of thewings, as and shaft II to assume positions other than parthey are raisedor lowered by the headed member allel to the axis of the cam wheels 4 asthey ropassing through the cam slots., tate, thereby allowing an up andAdown move- With the above and other objects in view the ment of theinner ends of the wings 9, and which invention resides in thecombination and arup and down movement may be varied according 25rangement of parts as hereinafter set forth, to the shape of the camslots I5, which are prefshown in the drawing, described and claimed,erably similar in both cam wheels 4. It will be it being understood thatchanges in the precise noted that there is a telescopic connectionbeembodiment of the invention may be made withtween the cam Wheels andthe inner' ends of the SO in the scope of what is claimed withoutdepartwings, thereby allowing a lengthening and shorting from the spiritof the invention. y ening connection, as it is obvious that different Inthe drawing: portions of the cam slots will be at different dis- Figure1 is a vertical transverse sectional view tances from the hinging points1.

through the aeroplane. The inner ends of the rockable wings 9 are Figure2 is an enlarged vertical transverse secguided in their upward anddownward movement 35 tional'view through a portion of one of the cam andare held against transverse movement inciwheels and telescopioconnection to one of the dent to` the rotation of the cam wheels bybearwings. ing wheels I'I rotatably mounted on the sleeves .Figure 3 isa fragmentary side elevation of a I2 and within the raceways I3, henceit will be 40 portion of the fuselage, showing the cam slot seen thatthere is a positive guiding of the inner 40 wheel and vertical bearingraceway. ends of the Wings. It is obvious that various l Figure 4 is aview similar to Figure 3, but showmovements of the wings may be obtainedby varying the opposite side of the fuselage. ing the shape of the camslots, and that appli- Referring to the drawing, the numeral I descantshows a cam slot shape that gives a sudden 4D ignates the elongatedfuselage, which may be of upward movementof the outer ends of the wings45 any construction. Disposed within the fuselage 9 and a flappingoperation with a pause on the I is an engine 2, which may be of anyeonstrucilat side of the cam slot.

tion, however said engine is provided with a drive From the above itwill be seen that an aeroy shaft 3,.which extends transversely of thefuseplane is provided of the flapping wing type, which 00 lage and isprovided with cam slot wheels 4. is positive in its operation and thewings flap by 50 Extending outwardly and upwardly from opa cam slotmovement so that the wings will simposite sides of the fuselage I arewing supporting ulate the flying operation of a bird. arms 5, the -outerends of which terminate in The invention having been set forth what isperches to the upper ends of which are hingclaimed as new and useful is:edly connected at 1 downwardly extending arms The combination with anaeroplane body, wing 55 the discs', vertically disposed straight bearingraceways in the opposite sides of the body and through which thetelescopic connections extend and antifrictional bearing members carriedby the telescopic connections and disposed in the raceways andvertically guided therein in said vertical transverse plane.

ARNOLD LUTSCHG.

